Light Emitting Diodes (LEDs) have been around for 50 years and you will be familiar with them as power indicator lights or transmitting information in a remote control, but recent developments in the technology now also make them a viable option for domestic and commercial lighting.
Individual LED bulbs are much smaller than traditional bulbs but, when arranged in an array, several LEDS can produce the same amount of light as an incandescent bulb, whilst using a fraction of the electrical power; Thereby offering significant energy costs savings.
An old incandescent bulb uses a filament which is heated to produce light. This heat is a by-product and is largely wasted. With incandescent bulbs, a huge portion of the electricity being consumer isn’t going toward producing visible light, which is highly inefficient. Another issue with incandescent bulbs is that the filament burns out, leading to a short lifespan.
LED bulbs do not use a filament, but rather generate light directly through the movement of electrons in a semi-conductor material. This process produces significantly less heat, with a much higher percentage of the electrical power being used to generate light. This process can produce the same level of light output, with significantly less electrical power, as well as offering a drastically longer lifespan.